Questions tagged [power]

Power is the rate at which energy is supplied or consumed, often measured in Watts. This tag covers electrical power specifically, the voltage and current specifications for supplying power to the Pi, the specifics of power consumption by the Pi, and methods for controlling Pi power consumption.

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Raspberry Pi 5 becomes buggy without monitor

I recently purchased a Raspberry Pi 5 and attempted to use it as a server for a Node.js program. The Raspberry Pi functions properly when connected to a monitor, and when I access it via SSH from my ...
Julien B's user avatar
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RPi 5 Python Shhutdown command shutsdown then reboots

The issue I am facing is that my RPi 5 running bookworm is running a heavily modified version of the script found on https://learn.sparkfun.com/tutorials/raspberry-pi-safe-reboot-and-shutdown-button/...
Collin's user avatar
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Anyone knows what this part is on RPi 4? Need help identifying it

something went wrong. After fresh Ubuntu installation Pi got stuck at bootloop. After a few times of crashing and rebooting i guessed bad ISO so i wanted to take the card out. That's how i ended up ...
Brat Lemi's user avatar
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2 answers
106 views

Pico W common reference ground with 5V power supply safe?

I have a question regarding a new project I’m currently working on. It involves a Raspberry Pico W, an external 5V 12A power supply and a WS2812B LED strip. Now, I already got it working flawlessly ...
Seatropicalnet's user avatar
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1 answer
178 views

Alternative Power Supply for Raspberry Pi 5 with 67 watt

I don't know why, but my original Raspberry power supply doesn't work anymore. I found a power supply at home, but it provides 67 watt instead of the original 27 watt. Is this a problem or could using ...
Jakob's user avatar
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Is the Raspberry Pi 5 Power Supply Compatible to the Pi 4

I need a new power supply for my Pi 4. Somewhen I will use a Raspberry Pi 5, but it needs the quite special Raspberry Pi 5 power supply. Is the Raspberry Pi 5 PSU (officially) compatible to the ...
Cellcon's user avatar
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Unable to restart after Ubuntu update

I have Raspberry PI 4B 8 GB with "Ubuntu 22.04.3 LTS (GNU/Linux 5.15.0-1034-raspi aarch64)" I start Ubuntu and see message "System information disabled due to load higher than 4.0"....
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Using Raspberry Pi to control light dimmer switch

In my house I have my lights hooked up to an ELKO 400GLI. I've not found good spec sheets for it online, but what it seems to do is control the brightness of the lights using a copper coil. What I ...
SirAchesis's user avatar
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How does the new RPi 5 function with a USB power supply?

Each new model of RPi "pushes the envelope" in terms of the amount of power it draws over a USB electrical interface. The RPi 4 was spec'd to require up to 15 watts: 3 Amps at 5 Volts. Three ...
Seamus's user avatar
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Ground offset when powering devices directly from 5VDC transformer

I am reading in current sensor (ACS712 20A) values using the MCP3008 ADC into my rpi zero. I am also using a Songle SLA-05VDC-SL-C relay, and have found that both the current sensor being on, and ...
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Raspberry pi 3b+, 3 green flashes, no display at all

my raspberry pi 3b+ was used to catch flightradar 24 signals. Suddenly it stopped working. On close visual inspection there were signs of water droplets close to IO pins. Now it won't boot. Red light ...
S Sarkar's user avatar
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Raspberry 3 with touch screen and RFID scanner power supply

I have some cheap scanner I'm playing around. It's USB connected and it works. I wonder can it be safe to make separate power for scanner, bcs allready have touch screen taking power from raspberry ...
ivanknezevic's user avatar
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Use external power supply

I'm a newbie I have a circuit which requires 12v to drive some ESCs that go to brushless motors and 5V that goes to pin 39 of a raspberry pi pico, they share a neutral / negative to complete the ...
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Howto safely reboot a hanging raspberry without SD card corruption? (reset button vs. power cycling?)

Occasionally my headless Raspberry Pi becomes unresponsive. I have configured the watchdog, but it doesn't always kick in. So I have added a reset button which does a hard reset by connecting the ...
user333869's user avatar
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Can I use this fast charger for my Raspberry Pi 4? [closed]

It is a fast charger and says 5V/10W and also says 45.0W MAX? Please help me out. I don't know what to do. Will it destroy my Pi 4?
Anonymous's user avatar
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Does it matter whether I use internal or external or sata or nvme drive in terms of power consumption for RP4?

I want to use an ssd to use raspberry pi with home assistant and I’ve found some information that an external ssd may require too much power and be unstable with the RP4. Is this true? Is one type ...
Juan Ramirez's user avatar
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Building RAID fails

I try to set up a RAID1 on a RPi4 with mdadm. I struggled at various corners along the way. Since it still doesn't work, I'm not sure what's fixed and what's still causing problems. Equipment ...
CaptainInler's user avatar
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Does Pi draw more power when GND is connected to pin 16?

Strange question perhaps, but I was wondering if anyone knows if a Pi would in theory consume more energy when the GND pin is connected to pin #16? I have an interactive piece of software running on ...
dongle's user avatar
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Is it ok to usb micro male - micro male for USB device?

I am hooking up an arduino micro to my Pi Zero W. For space, I used a short micro male-male USB cable: https://www.amazon.ca/CableCreation-Micro-Kindle-Android-Tablet/dp/B01M5GZ3N0 When I use this on ...
Organnoise's user avatar
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Raspberrry Pi 4 doesn't display image

I just received my raspberry pi 4 and I've got a basic setup ready to go. However when I turn the Pi on nothing displays on screen. I've got a microSD with Raspberry Pi OS installed already. Here's ...
BlueJay987's user avatar
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IR Remote POWER event when using EVDEV library

I have a python script that handles IR remote events using the EVDEV library. The problem I have is that the when debugging the KEY_POWER event code, it completely powers down the PI. Ideally, I want ...
Dave's user avatar
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Can I power my PI via USB if I Disable USB?

I learnt that I can disable the USB circuitry with this command: echo '1-1' |sudo tee /sys/bus/usb/drivers/usb/unbind Does doing this disable USB power too? Or just data/connectivity? I would test ...
Tom J Nowell's user avatar
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How to make a raspberry pi "hot unpluggable"

I want to be able to just pull the power on my raspberry pi project. I am aware that sd cards don't like that. Is it possible to use some kind of other persistent storage such as a flash drive or some ...
php_nub_qq's user avatar
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1 answer
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Powering RPi 4B via USB-C Intermittent

The USB-C port on one RPi 4B is not making a good connection. If I apply side pressure to the USB-C power cord, the connection is made, and the RPi powers up, but when I release pressure it dies again....
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CM4 carrier board design, what to do with GLOBAL_EN?

I'm designing a simple carrier board for CM4, I don't need a power switch, I just want it to run and boot as soon as I plug the power. What should I do with GLOBAL_EN and nRPIBOOT pins to make it ...
tapirath's user avatar
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Waveshare display acting wierd

I am using a waveshare 7inch display it was working well but today when i connexted it to raspberry pi the output is unexpected Please help me out Thanks in advance
Raghav's user avatar
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3 answers
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Raspberry Pi 3+ "brownouts" and under voltage issue with good power supplies

My raspberry pi 3+ is showing undervoltage warning. I know this is a common issue and I've done a fair bit of trouble shooting, so please keep reading. At first, I tried powering my raspberry pi with ...
mahela007's user avatar
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Undervoltage with 5V 5A PS

I know this is a subject that is exaustive and at risk of sounding ad nauseam I have to ask because I have no solutions. My pi is reporting undervoltage. I haven't ran into this since using a Pi1 ...
addohm's user avatar
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HDMI port on old raspberry pi physically hot when ran on batteries?

I have a pi with a step-down and some batteries and for some reason the hdmi is the hottest part, even when I don't have a hdmi plugged in? Could somebody explain
Desmond's user avatar
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How to reboot/restart a Raspberry Pi using its GPIO pins through another Pi?

I have a cluster of Pis that sometimes one of them fails and I cannot access it remotely until I come to the device and unplug and plug it again. I want a solution that if a Pi fails, I can remotely ...
Mohammad Sadegh Aslanpour's user avatar
1 vote
1 answer
148 views

Can the Raspberry Pi 4B power 2.5 hard drive and SSD without a USB hub?

Does Raspberry Pi 4 model B power one 2.5" Seagate 2TB external hard drive and a M.2 SSD connected via USB? Will official power supply suffice powering both and Pi? Any help or insight is highly ...
hulk_in_the_spa's user avatar
2 votes
2 answers
169 views

Is there a way I can use the HC-SR04 (ultrasonic sonar) along with the LCD display?

I have a Raspberry Pi4 Model B, with a 3.5" LCD display attached: Since the display occupies the first 26 pins, and therefore also the power supply ones, is there a way I could use the HC-SR04 ...
mikyll98's user avatar
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2 answers
349 views

Can Raspberry Pi 4 benefit from 3.5A power supply?

Experiencing external SSD data corruption issues which I believe are related to power issues. Evaluating if it’s worth upgrading power supply from official Raspberry Pi 3A USB-C power supply to Argon ...
sunknudsen's user avatar
-1 votes
2 answers
69 views

Turn ON without a screen or delay after power ON

I have RaspberryPI 4 and a few 3 that are hooked up to TV. If power goes out, I have to grab a ladder and turn ON TV first and then hook up raspberryPi for it to start booting. Is there a way to turn ...
Slack's user avatar
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3 votes
6 answers
536 views

I need a seemingly large battery for project containing several sensors, what should I do?

I'm working on a project with several sensors needing various 3.3v and 5v power. I'd like to have my sensors running for at least 24 hours before needing to recharge everything. I did the calculations:...
Katianie's user avatar
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1 vote
1 answer
142 views

Both 5V pins are taken but I need more [duplicate]

Hi I am doing a project where both 5V pins are taken by a step down connected to a solar panel. I am using a raspberry 3B and a breadboard. I need 5V to connect other stuff like ultrasonic sensor etc. ...
WontWorkD's user avatar
1 vote
2 answers
71 views

RPI 3 B+ 3V3 Shorted to Ground, Pin 18 Shorted to ground. Can this be Saved or is Pin 18 a safe sign for a dead CPU?

As the title suggests. I removed the power managment chip already but 3V3 is still shorted to ground.Since the schemtacis arent complete i cant find all caps to test first.Can there be another issue ...
Marlon's user avatar
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4 answers
259 views

Switching a bistable latching Relay directly - Not enough power from GPIO?

I'm trying to control this bistable latching Relay (RT314F03) After not being able to switch the relay I was wondering if that's even possible. While the Relay is rated for 3V, its "Rated Coil ...
Rune's user avatar
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1 answer
118 views

Is my raspberry pi 4 broken?

I'm using raspberry pi 4 to operate a servo motor and it was working appropriately yesterday. Today, I found the pi is getting too hot to hold and I cannot ssh to the pi. Because I cannot shutdown it, ...
hidetatz's user avatar
-1 votes
1 answer
2k views

Raspberry Pi not booting automatically after a power outage

I have an RPI4 (Buster) with SD Card for root storage as a home server. Recently I noticed that it does not boot up automatically after power outages. When the electricity is turned back, all lights ...
ihorc's user avatar
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0 answers
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wine: cannot find L"/home/lubuntu/.wine/drive_c/windows/Neko"

I am an unexperienced Linux user. I am trying to run an exe file in wine on live usb lubuntu 22.04 The problem is that when I try to run it from terminal by pasting the destination along with the ...
User lubuntu first october's user avatar
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1 answer
302 views

Raspberry Power Supply via GPIO. No HDMI or Ethernet

for my current project I need to supply the Pi via the GPIO pins with power. I know that I'm bypassing some security features, but my circuit has new ones implemented. The problem is, that I'm hocking ...
Andreas's user avatar
1 vote
2 answers
58 views

Im using this Canna Kit Rasperry Pi power supply low voltage warning

I'm wondering why I'm getting a low voltage warning with it after all it's recommended by so many sites. I do have it in a 5-slot power brick-like extension cable. Does anyone know why I might be ...
Derek Newman's user avatar
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1 answer
444 views

Does the Pi Pico need any kind of shutdown switch?

I am using the Pico to monitor voltage and amperage outputs of some solar panels (gotta love science fair) and am concerned with possible data loss. Is there a chance for data loss if the Pico is ...
Noah S's user avatar
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0 votes
2 answers
196 views

Powering GPIO-interacting sensors with external 3V3

I am using a Raspberry Pi Zero, with an x706 PSU hat (2 x 18650 batteries). The X706 PSU is charged by a good quality, stabilised 5V power supply unit providing up to 3A. The Pi is hooked up to many ...
de_a's user avatar
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1 vote
0 answers
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Raspberry Pi 2 model B HDMI no signal

I have a problem with my Raspberry Pi 2 Model B. It has Retropie installed and it used to work fine. Now my display says "no signal". What I tried after some research: Different cables and ...
Sebastian's user avatar
-3 votes
1 answer
276 views

How much powerful solar battery do I need to power the Raspberry Pi 4B at load and charge batteries to enough energy amount to work at night? [closed]

I need Raspberry Pi that will work autonomously long time. I think about solar panel what will power Pi at day and charge batteries for the night work till the next sunrise. So, how much powerful ...
Robotex's user avatar
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1 answer
786 views

Reasons the Pico W doesn't work when powered by new CR2032 battery?

Currently connected to GPIO Pins as per guide/datasheet and it's not powering up. Meanwhile I've got another same unit with the same simple setup/circuit except it's powered by 2 AA batteries and it's ...
Flood's user avatar
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1 answer
353 views

Can you use AC to USB DC Converter To Power Pico W?

Can you use these types of converters/adapters to power the Pico W? https://www.aliexpress.com/item/1005002442614617.html More importantly, when you'd look at the specs, what individual evaluation ...
Flood's user avatar
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1 vote
1 answer
279 views

Power issue: USB 4G Modem via USB Hub

I am hoping to get some advice, below is the hardware I am using, Raspberry Pi Zero 1.7W (Raspbian OS Lite - 2022 Kernel) Ethernet / USB HUB HAT (B) Hologram Nova 4G Modem Initial power tests, I see ...
Beaker's user avatar
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